Answer:
A synthetic element is one of 24 chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor, a particle accelerator, or the explosion of an atomic bomb; thus, they are called "synthetic", "artificial", or "man-made".
Explanation: hope that helps
An alp-ha particle is equivalent to the nucleus of a helium atom. Helium Atom = Answer.
1 kg = 1000g
2.43 kg *1000g/1kg = 2430 g
It forms Carbon monoxide.
CO2 +O2⇒ CO
(Sorry not balanced)
